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Finding the Fourth Proportional to 673,728.96, 929,902.32 and 444,327.78

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Solution

The fourth proportional to 673,728.96, 929,902.32 and 444,327.78 is: 613,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,728.96 : 929,902.32 = 444,327.78 : x
  2. Step 2: Convert to fraction form
    673,728.96/929,902.32 = 444,327.78/x
  3. Step 3: Cross multiply
    673,728.96x = 929,902.32 × 444,327.78
  4. Step 4: Simplify right side
    673,728.96x = 413,181,433,462.45
  5. Step 5: Solve for x
    x = 413,181,433,462.45/673,728.96
  6. Step 6: Final answer
    x = 613,275.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.